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Mercedes GLC vs Audi A4 Avant comparison

Compare performance (680 HP vs 470 HP), boot space and price (50,300 £ vs 37,200 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLC or Audi A4 Avant?

Mercedes GLC vs Audi A4 Avant: Key differences

Mercedes GLC

4.4 (11 Reviews)
rate
  • visibly more power
  • considerably more efficient
  • only slightly quicker 0–100 km/h
  • clearly more trunk space

Audi A4 Avant

  • noticeably cheaper
  • slightly lighter

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

Here’s where it gets real: The technical differences in detail

GLC

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Audi A4 Avant is noticeably cheaper – starting at 37,200 £ , while the Mercedes GLC costs 50,300 £ . That’s a price difference of around 13,085 £.

Fuel consumption also shows a difference: the Mercedes GLC uses 1.6 L/100km and is considerably more efficient than the Audi A4 Avant with 4.8 L/100km. The difference is about 3.2 L/100km.

A4 Avant

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes GLC offers visibly more power – delivering 680 HP compared to 470 HP. That’s roughly 210 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLC is only slightly quicker – completing the sprint in 3.5 s, while the Audi A4 Avant takes 3.7 s. That’s about 0.2 s quicker.

Looking at top speed, the Audi A4 Avant is marginally faster – reaching 300 km/h, while the Mercedes GLC tops out at 275 km/h. The difference is around 25 km/h.

There’s also a difference in torque: the Mercedes GLC delivers considerably more torque with 1,020 Nm compared to 600 Nm. That’s about 420 Nm more.

GLC

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Audi A4 Avant is slightly lighter – 1,595 kg compared to 1,910 kg. The difference is around 315 kg.

Looking at boot space, the Mercedes GLC offers clearly more boot space – 620 L compared to 495 L. That’s a difference of about 125 L.

For maximum load capacity, the Mercedes GLC offers somewhat more capacity – up to 1,740 L, about 245 L more than the Audi A4 Avant.

When it comes to payload, the Mercedes GLC carries very slightly more – 600 kg compared to 565 kg. That’s a difference of about 35 kg.

Who wins the race in the data check?

The Mercedes GLC is decisively ahead in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £50,300
GLC

Mercedes GLC

  • Engine Type : Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Power HP : 186 - 680 HP
  • Consumption L/100km : 1.6 - 9.7 L/100km
  • Consumption kWh/100km : 14.9 - 16.6 kWh/100km
  • Electric Range : 12 - 714 km
details

Frequently compared as well

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLC

The Mercedes GLC blends plush cabin comfort and composed road manners into an SUV that feels more grown-up than it looks. It won’t shout for attention, but will quietly please buyers who want refinement, usable space and a touch of luxury without the drama.

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Reviews Mercedes GLC

4.4 (11 Reviews)
rate
Marek
2 Jan 2026, 18:32:30

There’s something about a Mercedes — you have to take it for a spin to feel it and understand why it’s special.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Audi A4 Avant

The Audi A4 Avant blends elegant, understated styling with practical estate versatility, making it a polished choice for drivers who want both poise and generous cargo space. Inside, the cabin feels premium and tech-forward while the composed driving manners turn routine journeys into a quietly satisfying experience—exactly the sensible indulgence buyers will appreciate.

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Reviews Audi A4 Avant

No reviews yet. Share your experience and help others decide.

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Audi A4 Avant

Costs and Consumption
Price
50,300 - 126,600 £
Price
37,200 - 122,500 £
Consumption L/100km
1.6 - 9.7 L/100km
Consumption L/100km
4.8 - 9.7 L/100km
Consumption kWh/100km
14.9 - 16.6 kWh/100km
Consumption kWh/100km
-
Electric Range
12 - 714 km
Electric Range
-
Battery Capacity
94 kWh
Battery Capacity
-
co2
0 - 221 g/km
co2
126 - 220 g/km
Fuel tank capacity
62 - 65 L
Fuel tank capacity
40 - 58 L

Dimensions and Body
Body Type
SUV
Body Type
Estate
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1,910 - 2,535 kg
Curb weight
1,595 - 1,820 kg
Trunk capacity
390 - 620 L
Trunk capacity
495 L
Length
4,716 - 4,845 mm
Length
4,750 - 4,782 mm
Width
1,890 - 1,913 mm
Width
1,842 - 1,866 mm
Height
1,603 - 1,644 mm
Height
1,428 - 1,493 mm
Max trunk capacity
1,490 - 1,740 L
Max trunk capacity
1,495 L
Payload
475 - 600 kg
Payload
510 - 565 kg

Engine and Performance
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel MHEV, Electric
Engine Type
Diesel MHEV, Petrol MHEV, Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox, Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive, Front-Wheel Drive
Power HP
186 - 680 HP
Power HP
136 - 470 HP
Acceleration 0-100km/h
3.5 - 9 s
Acceleration 0-100km/h
3.7 - 9.8 s
Max Speed
210 - 275 km/h
Max Speed
210 - 300 km/h
Torque
320 - 1,020 Nm
Torque
270 - 600 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4 - 6
Power kW
137 - 500 kW
Power kW
100 - 346 kW
Engine capacity
1,991 - 2,989 cm3
Engine capacity
1,968 - 2,894 cm3

General
Model Year
2,025 - 2,026
Model Year
2,023 - 2,024
CO2 Efficiency Class
F, G, D, B, E, A
CO2 Efficiency Class
E, F, D, G
Brand
Mercedes-Benz
Brand
Audi
Is the Mercedes GLC offered with different drivetrains?

Available configurations include All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.